It's not easy, but not impossible. All of Trump's weaknesses you mentioned in another previous post still apply vs Harris (and his age being a big weakness). Counterintuitively it would probably be easier for the GOP to get a woman or non-white candidate elected president, except they don't have enough of either to be taken seriously. Tribalism is a much bigger factor than ethnicity and sex when it comes to politics in America. Anyone who wouldn't vote for Harris because she's a black woman probably wouldn't vote for Biden either, because that voter is already firmly in the GOP camp.
It's not easy, but not impossible. All of Trump's weaknesses you mentioned in another previous post still apply vs Harris (and his age being a big weakness). Counterintuitively it would probably be easier for the GOP to get a woman or non-white candidate elected president, except they don't have enough of either to be taken seriously. Tribalism is a much bigger factor than ethnicity and sex when it comes to politics in America. Anyone who wouldn't vote for Harris because she's a black woman probably wouldn't vote for Biden either, because that voter is already firmly in the GOP camp.